For some real-life social media examples, check out Groupon’s campaign to have someone live solely on its deals for a year – without cash! – in the Washington Post, while USAToday looks at how some doctors are using social media.

Fast Company has compiled a number of social media policies, including those from CNN, BestBuy and Walmart.

Techvibes has compiled a list of ten examples of social media gone wrong, all of which are now used in case studies as things not to do. If something goes wrong for you on social media, you might need this Mashable list of five ways to clean up your social media identity.

This “graph with data” from Flowtown shows which news sites are the most shared. Not surprising that Mashable, New York Times and BBC are the top three.

Finally, if you have some time, flip through Google’s 216-page social media manifesto “The Real Life Social Network v2” to see how the company thinks we interact online – via The Atlantic